}

    @Nested
    @DisplayName("OEM Decoding Tests")
    class OEMDecodingTests {

        @Test
        @DisplayName("fromOEMBytes should decode using configuration encoding")
        void testFromOEMBytes() {
            // Given
            Configuration mockConfig = mock(Configuration.class);
            when(mockConfig.getOemEncoding()).thenReturn("UTF-8");